Questions Asked on
September 2, 2009

  1. chemistry

    1)how many Meters of wire (diamter=6.304 x10^-3) can produced from from 5.01 lb of a mixture of ore and copper that is 66% copper d of copper =8.95 g/cm^3 cylinder =pie r^2 H answer is 8.32 x 10^3m 2) v=4/3pie r^3, r=17.282 mm my solutions books says this:

    asked by Jim_R
  2. Chemistry

    For how long should you boil the water in the flask during your experiment?

    asked by Kedia
  3. Chemistry

    What gas has the greatest "lifting power" in lighter than air balloons?

    asked by Kedia
  4. English

    1. Hangeul, the Korean alphabet was invented by King Sejong with the help of his scholars. It is one of the best writing systems in the world. 2. Taekwondo is a Korean martical art, which was started in Korea. Nowadays many people all around world are

    asked by John
  5. allied health

    When you do a puch up from the floor, what kind of movement describes the motion of your elbow?

    asked by denny
  6. Pre-calculus

    How do you write an equation of a translated line given the equation of the original line and both the translated and original lines on a graph?? Thanks in advance!!

    asked by Krista
  7. Pre-calculus

    How do you write an equation of a translated line given the equation of the original line and both the translated and original lines on a graph?? Thanks in advance!!

    asked by Krista
  8. Chemistry

    Is barometric pressure of 765.7 mmHg is equivalent to 1.008 atm? I'm confused.

    asked by Kedia
  9. History

    After the Treaty of Paris, what policy changes did Britain make for the colonies?

    asked by Allie
  10. physical science

    what is the temperature of a winter day at the north pol (-40.0 C)in fahrenheit and kelvins?

    asked by dontae
  11. US History

    What were the British and American military strategies and the war's major turning points?

    asked by Paul
  12. Chemistry II

    what is the molar mass of a gaseous organic compound with a density of 3.38 g/L at 40oC and a pressure of 1.97 atm? Ok, I am little confused because I am not sure of where to plug in the density and the atm?

    asked by Michelle
  13. Health care Management

    How do ethics influence human behavior in organizations? What can you do to be a good corporate citizen and use ethical behavior?

    asked by Mikrya
  14. Chemistry II

    what is the molar mass of a gaseous organic compound with a density of 3.38 g/L at 40oC and a pressure of 1.97 atm? I got 4.41M, is this correct?

    asked by Michelle
  15. chemistary

    evaporation?

    asked by jake
  16. programming

    I am supposed to modify this program so it begins by asking the user for the number of values. The program then uses a loop to read the specified number of values and then display their average. program is below that i worked on in class. I been working on

    asked by cl
  17. people

    What was Kate Sheppard famous for?

    asked by Anonymus
  18. biology

    What is the heterotrophic hypothesis and how can I explain it from both a biological and conceptual framework?

    asked by Caitlin
  19. biology

    How did the primordial atmosphere, photosynthesis, oxygen, the ozone layer, and the endosymbiotic theory influence the origin of living organisms?

    asked by Serena
  20. biology

    What are three points of evidence that scientists used to develp the three-domain system?

    asked by Kal
  21. biology

    How do adaptive radiation, polyploidy, and sexual selection relate to speciation? And what is allopatric and sympatric speciation and how to they relate to the earlier mentioned topics?

    asked by Rach
  22. Physics

    how much torque does it take to turn a rotor that is 12" diameter and weights around 200lbs that seats on bearings. a 2" diameter shaft that through the center of the rotor that is on center. don

    asked by righteous dude
  23. health care

    response to the following: Computer technology continues to make rapid advances. Health care facilities have used computer programs for administrative functions such as payroll and billing. How do health care facilities use electronic (or computerized)

    asked by Tj
  24. 4th Grade Language Arts

    Can you please check my answers. I made the answers in capital letters. Directions, Choose the simple subject in each sentence. 1. The annual kite contest takes place this weekend. KITE 2. Fifty contestants are competing for first prize this year.

    asked by Claire
  25. geography

    A PORTION OF THE OCEAN THAT'S ENCLOSED OR PARTLY ENCLOSED BY LAND

    asked by CONNIE
  26. MEASUREMENT

    what is an easy way to describe a golden triangle?

    asked by ggift
  27. Chemistry

    Hi DrBob, thanks for getting back to me on the earlier related question, but to be honest I am COMPLETELY lost on this! Can you please show me how your worked out the answere using the figures from the question. Thanks. Question: (a) How much sodium

    asked by Gille
  28. Chemistry

    What would be a chemically reasonable formula for a compound consisting of each of the following pairs of elements: (a) K and F (b) N and S

    asked by Gille
  29. Chemistry

    What would be a chemically reasonable formula for a compound consisting of each of the following pairs of elements: (a) K and F (b) N and S

    asked by Gille
  30. physics

    suntanning produces cell damage in the skin. why is ultraviolet radiation capable of producing this damage, while visible radiation, even if more intense, is not?

    asked by Asaad
  31. psychology

    do you agree that humans are creatures as well as creators of their personal and social world

    asked by alice
  32. college

    A solution that has more hydroxyl ions than hydrogen ions are

    asked by Deanna
  33. College English

    Does anyone have any good, simply explained sources on how to use the MLA format?

    asked by Marco
  34. geometry

    In triangle LM equals 5 and m angle K equals 45. find KL. leave your answer in simplest radical form.?

    asked by joana
  35. english

    We're reading a book in English class and my teacher asked us to 1. Note a character to whom you responded. and 2. note a location to which you could relate or that reminded you of a similar place/memory in your own experience. What does it mean by a

    asked by anonymous
  36. Biology

    can anyone explain the heterotrophic hypothesis in more detail than the fact that the first organisms arose from the primordial soup? thanks!

    asked by Anonymous
  37. Algebra 2

    (9x^3 - 10x) (3x - 1)

    asked by Chelly
  38. Creative Writing

    I gathered some ideas yesterday for my essay on: Being an only child has more advantages than being one of several children in a family, 1. an only child has all the attention of his/her parents 2. he/she is provided with better things 3. since he/she is

    asked by y912f
  39. Literature

    -Write a short narrative about a conflict or confrontation that is funny, scary, sad, or just interesting to you. Your story can be true or fictional and it must be atleast 5 paragraphs long. -This is what I have: “MC, you can do this. It’s only a

    asked by mysterychicken
  40. Biology

    What is the effect of carbon monoxide in the blood? I think its because carbon monoxide combines with the blood to form carbooxyhaemoglobin which reduces the amount of oxygen combining with haemogloblin.Hence a person suffers from lack of oxygen and

    asked by Anonymous
  41. ENVIRO SCIENCE

    1.Between 1950 and 2004, the world population increased exponentially from 2.5 billion to 6.4 billion, what is the percent change? 2.Calculate the percent decrease if there are 620 incoming freshmen and 500 graduated seniors? percent change: (amount

    asked by RAYMOND
  42. algrebra

    3y-7+y=25+5y=20-3y

    asked by barbara
  43. macro economics

    Using a Circular Flow diagram as a reference, describe how changes in one of the sectors of an economy will influence aggregate supply and demand.

    asked by joe
  44. Very easy math

    my teacher told me that the inverse of addition was subtraction and that the inverse of subtraction was addition... could you prove it to me -x = (-1)x ((-1)x)^-1 I don't see how I'm suppose to get + x by taking the inverse of -x i've always been told in

    asked by Very easy Math
  45. algebra

    I'm really confused on how to do a few questions. i am supposed to write the expression using exponents. 1. (2a)(2a)(2a)+(x+y)(x+y) i am supposed to evaluate this one 1. 4(2+2)^3/(3+1)^2 thanks so much

    asked by anonymous
  46. MATH

    I have a square that is divided into 2 triangles. In the middle of the top triangle there is this: 6ã2 in. and at the bottom corner of the same triangle it says 45 degrees. Could some explain to me how to find the area and the perimeter? I'm not sure

    asked by Anonymous
  47. science

    this is the 40th year that man has landed on the moon. what progress has been attained since man landed on the moon? please please please please please please hElP

    asked by navi
  48. Creative Writing(ms.sue)

    ok, so i didn't spend much time on it, but here's what i got for the introduction: ( please correct any grammatical or any other mistakes ) An only child has it all! No problems, no worries. It has always been that way; they just never seem to have any

    asked by y912f
  49. math

    An object dropped from restfrom the top of a tall building falls y=16t^2 feet in the first t seconds. Find the speed of the object at t=3 seconds and confirmalgebraically. The answer is 96 feet/sec but how do i figure it out? cans omeone show me steps?

    asked by cara
  50. chemistry

    Diamond and graphite are both allotropes of carbon. However only graphite can be used as an electrode explain why this is so even though they are both forms of carbon?

    asked by Anonymous
  51. American Lit

    I am reading John Winthrops "A Model of Christian Charity" and the question I need help with is as follows... Define Christian Charity?

    asked by Amanda
  52. math

    how would I do this limit?(by the way -> is an arrow( lim x-> 0 (5x^3+8x^2)/ (3x^4 - 16x^2)

    asked by cara
  53. 3rd grade

    This is my sons math problem I am not good at math please can you help me and show the work for the calculations " ALI MADE A MODEL FOR 624 USING 6 HUNDREDS, 2 TENS, AND 4 ONES. WHAT IF ALI HAD NOT HAD ANY TENS? HOW COULD SHE HAVE MODELED 624 WITHOUT USING

    asked by keisha
  54. Math

    How is math useful to my career in Sports Medicine?

    asked by Carlie
  55. english

    over the summer i had to read Angela's Ashes by Frank McCourt and do 20 plot thoughts about the book. I did read the book, but I am having quite a hard time finding 20 meaningful quotes from the story that I am able to explain. Can anyone please help me?

    asked by
  56. science

    How can island biogeography be compared to the design of nature reserves? I understandall the things you can do to the nature reserve in terms of bettering it but how is an island similar to a wildlife refugee or reserve (why can you compare them)? can

    asked by alice
  57. Statistics

    The lifetime of a 2-volt non-rechargeable battery in contant use has a normal distribution with a mean of 516 hours and a standard deviation of 20 hours. Ninety percent of all batteries have a lifetime less than ?

    asked by Karen
  58. world history

    Source-(The event which finally triggered war came on 28th June in Sarajevo, a town in the Austro-Hungarian Provence of Bosnia) How important was the assassinations of the Archduke Franz Ferdinand and his wife in causing the First World War? (5 marks)

    asked by Lauren
  59. Statistics

    The lifetime of a 2-volt non-rechargeable battery in contant use has a normal distribution with a mean of 516 hours and a standard deviation of 20 hours. Ninety percent of all batteries have a lifetime less than ?

    asked by Karen
  60. Math

    x(2nd power)+ 2x - 3 ________________________ (Divided by) x (2nd power) + 3x

    asked by Jordan
  61. Math

    6x(squared) - 2xy ________________________ (divided by) y(squared) - 9x(squared)

    asked by Jordan
  62. Math

    Can somebody please help me with rounding decimals to the nearest tenth ??

    asked by Jaylon
  63. english

    Analogies: 1) Worthwhile : Valuable :: A) Worthless : priceless B) Beneficial : Worthy *I think it's A* 2) Store : Supply :: A) Department : section B) Provision : dispensary C) Keep : Distribute D) Stockpile : Reserve *I have no idea what this one is*

    asked by Jamie
  64. Chemistry

    Of what value is knowledge of density to a chemist?

    asked by Christina
  65. Science

    What is Scientific Principle?

    asked by Christina
  66. math

    my son has a math problem i need help with. 21/14=7 what is the /

    asked by Lori
  67. Chemistry

    What would the scientific principle be when the purpose of the lab is to learn and practice techniques and calculations for determining volume and density of a substance?

    asked by Ashley
  68. math

    sorry i was wrong the question reads 28/14=7

    asked by Lori
  69. english

    I trying to correct this sentence. Most stockholders favored the merger, the management did not. I know this is a comma splice sentence

    asked by lashundra
  70. Science

    What are the 7 SI units and their units of measurements?

    asked by Ashley
  71. French

    Could you please check these thanks Directions: Complete each with the correct form of quel followed by the item of clothing. So you can just make sure I used the right verb and make sure it sounds right. 1. Quelle jupe plissée. 2. Quelle chemisier. 3.

    asked by Lisa
  72. math

    if 10 decimeters make meter then how many square decimeters make a square meter?

    asked by alyssa
  73. French

    Could you please check these thanks. Directions: Complétez avec quel et puis répondez. 1. Tu fais un voyage? ------ voyage? Answer: quel 2. Ton avion part à ------- heure? Answer: quelle 3. Ton avion part de -------- porte? Answer: quelle 4. Pendant le

    asked by Lisa
  74. algebra

    I am supposed to correc t the parenthesis in this equation (a+b)second power+ a to the second + b to the second

    asked by alex
  75. World History

    Could you help me with this question: What year did the act of Uniformity get put into effect?

    asked by Jeff
  76. math

    4-(-h)=68

    asked by tay
  77. math

    how many square centimeters make a square meter

    asked by alyssa
  78. Burk

    What is the prime factoization for 54 but I need to know how it looks like in a "Factorization Tree" Thanks Please Help!!!

    asked by Tori
  79. math

    9+3= what

    asked by Dude
  80. math

    For the first day of school, our math teacher wanted us to write ten things to say instead of saying "shut up", I've only got a couple so far, any ideas?

    asked by Tom
  81. math

    I Need help asap!!! I was sick on Thursday from school ...I was assinged a worksheet I had to leave my book at school the questions are- What are the prime factorization for 54,36, 63, and 245, In tree form.... VERY CONFUSED!!! Please help if possible!!!

    asked by Tori
  82. 5th grade

    how do you know the difference between complete predicates and complete subjects

    asked by bradley
  83. math

    -2.378 is it a rational or irrational

    asked by cc
  84. math

    how many square millimeters equal 1 square meter

    asked by alyssa
  85. math

    1. Number Sense: write three numbers that are greater than 1,543,000 and less than 1,544,000 2. Put the planets in order from the one closest to the sun to the one farthest from the sun. Earth 93,000,000 Jupiter 483,000,000 Mars 142,000,000 Mercury

    asked by Bianca
  86. 6th Grade Civil War History

    These are all true or false questions: The Civil War Greatly increased the power of the Federal Government. I think that is false but I'm not sure . . . As a result of the war, the South's economy boomed, while the economy of the North slumped. I'm pretty

    asked by Mary-Grace
  87. AED 204

    Final Project: -Consider that each person in the education profession should continually add items to his or her professional portfolio to represent his or her educational philosophy and beliefs. Often, paraprofessional educators forget that the atmoshpree

    asked by Punkie
  88. CONSUSED!!!!HELP

    What is the prime factorization for 63 using The factorization tree??

    asked by Tori
  89. Literature

    Does Robert Frost use figurative language in The Road Not Taken? Could "Because it was grassy and wanted wear" be one?

    asked by JSM
  90. Social Studies

    Which of the factors best help explain why a strong navy and a large fleet of trading ships have been an important part of the UK's history.

    asked by Victoria
  91. math

    how do i find the limit of this? (This symbol:-> is an arrow) lim of x-> 0 sin^2x/x can someone please explain?

    asked by alice
  92. World War 1

    What were the three forces at work in Europe that helped set the stage for World War 1?

    asked by Chris
  93. Social Studies

    1.Who were the members of the Triple Alliance? The Triple Entente? 2. What single event set in motion the start of world war 1. 3. Which of the forces at work in Europe played the greatest role in helping to prompt the outbreak of World War 1? 4. Do you

    asked by Chris
  94. COM140

    Suggest two tips for creating academic documents not mentioned in the resource information. Which guidelines do you think are most important for formatting papers? Which guidelines appear less important to the message of a business document but more

    asked by Brenda
  95. social studies

    Could World War 1 have been prevented?

    asked by Chris
  96. Rosely

    Transcendentials; view of god,values,how do thet define truth,optimistic or pesikmistic view of life,

    asked by Rosely
  97. MATH

    I have been given a circle with a shaded triangle. Inside the circle is 10m. Inside the triangle is 60 degrees. I need to find the area of the shaded part.

    asked by Anonymous
  98. 3rd grade

    what is a synonym

    asked by Anonymous
  99. 10th grade punctuation

    Ed and Jim's essays were both titler Kwazaa: A Special Time for African Americans.

    asked by Danielle
  100. MATH 157

    How many different types of semi irregular tessellations are there?

    asked by ggift
  101. MATH 157

    Can anyone please tell me the number of degrees in the point angle of a {9/2} star polygon?

    asked by ggift
  102. msth 115

    help multiply and use simplest form 4 1/5*10/21*9/20

    asked by p
  103. GEOMETRY

    If a polyhedron has 13 vertices and 21 faces, how many edges does it have? I can't figure this one out.

    asked by ggift
  104. american lit

    What is the religious symbolism in My Antonia? How is My Antonia an American Genesis? Why might Cather have chosen to fram her narrative in this fashion? I thought it would be how at first God made nothing but land, which is what Jim saw at first and then

    asked by Karina
  105. 6th Grade Social Studies

    My worksheet asked; How far north and south does the state of Georgia extend? Answer in degrees of lattitude. The lattitude lines start at 35degrees N and end at 31degrees N; although a part of Georgia is near 30 degrees N. Hiw do I answer this question?

    asked by Ashley
  106. algebra

    How would you solve the systemof equations using the substitution method: 2x-9y=2 4x+18y=12

    asked by Connor
  107. College English

    I have been asked to present a gist statement and I am just looking to find out if I understood the concept. Below is what I've been asked to analyze: We see them everywhere: on billboards, in magazines, on bus placards. They come in the mail and in our

    asked by Marco
  108. COM140

    Which guidelines do you think are most important for formatting papers? Which guidelines appear less important to the message of a business document but more important to the message of an academic paper? Explain your answers.

    asked by Brenda
  109. biology

    What are the 7 characteristics of living organisms?

    asked by torrie
  110. English

    What are the dependent and independent variables in the sentences? I don't understand them. 1. Students who have higher intelligence report they like their teachers the most. 2. Methodists who are less likely to engage in alcohol abuse are less likely to

    asked by Ashley
  111. math

    (14*5)^2/5^2=

    asked by jamia
  112. geography

    what factors account for the similaritiers and difference between the subdivisions im tropical climate zones?

    asked by jazmine
  113. math

    What is three eighths of 32 pieces? And how do i write out the problem to find the answer?

    asked by Sydney
  114. math

    (14*5)^2/5^2=

    asked by jamia
  115. math

    2[3+12/5]+2=

    asked by jamia
  116. MATH 157

    would it be best to have a refrigerator set at 29 degrees or 43.5 degrees celcius?

    asked by ggift
  117. math

    I am changing measurement to the given unit. I need to change 14m to kilometers what is the answer?help please

    asked by shebree
  118. the crusades

    i need some links on primary resources on saladin, the muslim leader. think ya can help?

    asked by jessica
  119. math

    kelly solved the following problem on her recent math test 121/11+4*8=120 the answer was marked wrong by your teacher and kelly is asking you to explain why she missed the promblem.whicthsolutions would you tell her A.divide 121 by 11,multipy 4 by 8 then

    asked by jamia
  120. science

    How many yards are contained in 1.5 meters? (1.093 yards equals 1 meter)

    asked by Anonymous
  121. MATH 157

    what is the ratio of the surface areas for a pair of similar cylinders when the ratio of the heights is 1:3? i don't understand this at all!!

    asked by ggift
  122. Physics

    Please help! I don't know how to solve these problems! 1 A runner dashes from the starting line (x = 0) to a point 130 m away and then turns around and runs to a point 11 m away from the starting point in 21 seconds. To the nearest tenth of a m/s what is

    asked by Yulka
  123. AP Physics

    Hi, please help me solve these questions for my class. I have so much homework A car traveling at 17 m/s accelerates at 3.3 m/s2 for 16 seconds. To the nearest meter how far does it travel? To the nearest tenth of a m/s, what is the final velocity of the

    asked by Leslie
  124. English

    1. If you have any money, lend me some. 2. If you have some money, lend me some. (Can we use both expressions? In the if clause, 'any' is used, I know. What is the difference between them if both are OK?) 3. You can't do everything. 4. You can't do

    asked by John
  125. AP Statistics

    Hi, we just started density curves in AP Stats, and I am a little confused about one of the concepts. It keeps saying that a density curve has to have an area equal to 1 below it... 1 of what? I don't understand how you figure out if the area of your curve

    asked by Alex
  126. math

    what are whole numbers

    asked by bob
  127. American Government

    Does the president have the power to declare war or is it up to congress? We are having a discussion in class.

    asked by ggift
  128. science

    When scientist do their experimental test more than once so they can reduce the effects of chance errors what is this called in one word?

    asked by lisa
  129. math

    L =40mL

    asked by shebree
  130. check geo

    russian coasts lie along the pacific and artic oceans, as well as the: A)caspian sea, black sea, and baltic sea. B)atlantic ocean,black sea,and baltic sea. c)capian sea,north sea,and black sea D)North sea,black sea,and baltic sea. .The answer is A. The

    asked by henry
  131. US History

    In the 1600's what was referred to as "the elect"?

    asked by Meg
  132. math 115

    Business and finance. A piece of land measures3 3/4 acres and is for sale at $60,000. What is the price per acre?

    asked by p
  133. math

    Which of the following sets are equal? A = {n € Z : |n| < 2} B = {n € Z : n^3 = n} C = {n € Z : n^2 ≤ n} D = {n € Z : n^2 ≤ 1} E = {-1, 0, 1} I think that A = E, B = E, and D = E, but I am not sure.

    asked by Arica
  134. math

    the number 3456 is divisible by wich single/diget numbers

    asked by bob
  135. English

    1. Hyundae Motor Corporation is a big company in our country. We can see many cars made in Hyundae these days. Even in the USA, we can see Hyundae cars. They are not so expensive that many people seem to buy them in the world. It can be a pleasure to see

    asked by John
  136. government

    Identify 2 factors that led to prohibition

    asked by Abe
  137. math

    Crafts. Evette has 41 1/2ft of string. She wants to cut it into pieces3 3/4 ft long. How many pieces of string will she have? How much string remains, if any?

    asked by smmer
  138. enlgish

    Last night, lucy and Neil met Morey in Gramercy Park. 1. The object of the verb is.? 2. the predicate of the sentence is?

    asked by jk
  139. geo

    Which statement about fishing in russia is TRUE? A)Russia's salmon catch is decreasing B) All of the fishing industry depends on sturgeon C) fishing is important to the econonmy despite polluted waterways. D) Russia's fishing exports double every year.

    asked by henry
  140. 7th grade math

    write a rate that can be calculated from the information. There are 40 cars parked in the 6 rows of that parking lot

    asked by maria
  141. Algebra

    -2x+y=5 2x+3y=3

    asked by shai.!*
  142. math

    I know it seems strange, but for our homework tonight in math class, our teacher had us list 10 things to say instead of "shut up." I only have a couple, and need some help, please list as many as possible, thanks so much!!

    asked by Jen
  143. geometry

    what do u call the numbers that can't be arranged into 2 row arrays

    asked by Ryan
  144. math

    I know it seems strange, but for our homework tonight in math class, our teacher had us list 10 things to say instead of "shut up." I only have a couple, and need some help, please list as many as possible, thanks so much!!

    asked by Jen
  145. english

    Just as My Àntonia’s setting is initially raw and featureless, its narrative at first seems haphazard: “I didn’t arrange or rearrange. I simply wrote down what of herself and myself and other people’s, Antonia’s name recalls to me. I suppose it

    asked by brittany
  146. math 115

    could someone check my work please? 1.List the factors of each of the following numbers.66 1,11,6 2.Use the following list of numbers for exercises 13 and 14. 0, 1, 15, 19, 23, 31, 49, 55, 59, 87, 91, 97, 103, 105 15,55,105 answer 3.1,55, 1,57,

    asked by p
  147. social studies

    how does living along the coast affect how some people earn a living?

    asked by cool
  148. math

    Find the prime factorization of each number,330 2.Find two factors of 28 with a sum of 11.7*4=28 =7+4=11 3.Find the greatest common factor for each of the following groups of numbers 36, 72, and 144 answer36, 72, and 144

    asked by p
  149. geography

    russias historical roots date back to the: A)400s B)600s C)800s D)1000s my choice is b what was kievan rus? A) an influential russian czar of the 1400s B)a union of city sytates organized by scandinavian warriors. C)the first agriculture commune

    asked by henry
  150. math

    A computer can execute 36 instructions per microsecond. How many instructions can it execute in 4 min?

    asked by smmer
  151. math

    what is 4m=20

    asked by Anthony
  152. geography

    during the late 1700s, the russian nobility: A)adopted the muslim religion and customs B)spoke french and adopted other western european ways. c)rejected western europe as a decadent culture d)embraced the ideas of karl marx. my choice b As believers in

    asked by henry
  153. physics

    The drawing shows three point charges fixed in place. The charge at the coordinate origin has a value of q1 = +8.70 µC; the other two charges have identical magnitudes, but opposite signs: q2 = -4.50 µC and q3 = +4.50 µC. Determine the net force

    asked by amber
  154. physics

    The drawing shows three point charges fixed in place. The charge at the coordinate origin has a value of q1 = +8.70 µC; the other two charges have identical magnitudes, but opposite signs: q2 = -4.50 µC and q3 = +4.50 µC. Determine the net force

    asked by amber
  155. physics

    Suppose a single electron orbits about a nucleus containing two protons (+2e), as would be the case for a helium atom from which one of the two naturally occurring electrons is removed. The radius of the orbit is 2.65 10-11 m. Determine the magnitude of

    asked by amber
  156. physics

    Two tiny spheres have the same mass and carry charges of the same magnitude. The mass of each sphere is 3.30 10-6 kg. The gravitational force that each sphere exerts on the other is balanced by the electric force. (a) What algebraic signs can the charges

    asked by ashley
  157. Social studies

    Why did the ancient puebloans most likely use materials other than wood to build their homes? A. Few trees grew in the dry climate in which they lived B. Wood was considered too sacred to use for building C.They were nomads and needed to move their homes

    asked by Elizabeth
  158. physics

    Three charges are fixed to an x, y coordinate system. A charge of +19 µC is on the y axis at y = 2.8 m. A charge of -13 µC is at the origin. Last, a charge of +47 µC is on the x axis at x = +2.8 m. Determine the magnitude and direction of the net

    asked by kary
  159. physics

    Consider three identical metal spheres, A, B, and C. Sphere A carries a charge of -2q. Sphere B carries a charge of +9q. Sphere C carries no net charge. Spheres A and B are touched together and then separated. Sphere C is then touched to sphere A and

    asked by kary
  160. geography

    The russian revolution in 1917 established: A)the eastern orthodox chruch as the center of power in russia. B)the czar as the holder of power as long as he agreed to be a communist C)a representative government but the revolution continued. D)peter the

    asked by henry
  161. physics

    Four identical metallic objects carry the following charges: +4.2 µC, +5.4 µC, -2.2 µC, and -4.4 µC. The objects are brought simultaneously into contact, so that each touches the others. Then they are separated. How many electrons (or protons) make up

    asked by kary
  162. 7th grade math

    Keeping the numbers in exact order, add perentheses, exponents, multiplication, subtraction, divison and addition to make this expression equal 100. 3,5,6,2,54, and 5. Thank you!

    asked by Isabel
  163. geography

    what is the second largest religion in russia today: A)islam B)christianity C)buddhism d)judasim my choice b todays russia literacy rate is: A)about 80 % B)nearly 100 % C)under 50% lower than at any time in history. my choice b.

    asked by henry
  164. math

    im having problems with these word problems. A bill is sent to the President of the United States when it has passed both houses of Congress. A majority vote in both the House of Representatives (435 members) and the Senate (100 members) is needed for the

    asked by smmer
  165. French response to mathmate

    Here are the corrected answers to the first post. Thank you so much for all the help!! :)) 1. Quelle jupe plissée 2. Quel chemisier 3. Quel pull 4. Quelle paire de chaussures 5. Quel manteau 6. Quelle chemise à manches à longues 7. Quel jean 8. Quel

    asked by Jeff
  166. math

    9+(P+3) P=?

    asked by Anthony
  167. geo

    russia depends primarly upon ___ for transportation. A)cars and trucks B)airplanes and cars C)railroads and waterways D)subways and trucks my choice is d why is public transportation important in russia? A)private ownership of automobile is forbidden B)the

    asked by henry
  168. Accounting

    Please prepare and post your response to the following question no later than Wednesday of this week: A major network is launching a reality program called The Accountant. A group of recent accounting graduates will be competing for a spot in a national

    asked by Sandy
  169. Please Help, Physics

    1 A runner dashes from the starting line (x = 0) to a point 130 m away and then turns around and runs to a point 11 m away from the starting point in 21 seconds. To the nearest tenth of a m/s what is the average speed? 2 What is the runner's average

    asked by Sari
  170. geography

    russians today can choose from among: A)20 to 30 newspaper and journals B)10,000 newspaper and journals C)1,000 newspaper and journals D)three newspaper my choice is b under soviet system the government: A)controlled all forms of communication B)allowed

    asked by henry
  171. alabama history

    list some physical features that can be used to locate alabama

    asked by Brandy
  172. geo

    russias major trading partners include A)brazil, france , and iraq B)japan, the european union , and the u.s C)isreal, syria, and jordan D)all of the above my choice b Russia air water and soil were damaged by A)the russia revolution B)soviet disregard for

    asked by henry
  173. Art

    How does the medium influence the way we perceive art and the value we may give to a particular piece?

    asked by Nicole
  174. Art

    Do writings bias or limit our experience of art?

    asked by Nicole
  175. geo

    russian farmland has been damaged by: A)fertilizers and pesticides B)organic farming C)severe weather swept in by ocean currents D)tourism my ans is a

    asked by henry
  176. calculus

    There are an infinite number of triangles that must be isosceles and have two legs that measure 10 cm, each of them has an area. what is the biggest area such a triangle could have?

    asked by sarah
  177. algebra

    A square plot of land has a building 60ft long and 40ft wide at one corner. The rest of the land outside the building forms a parking lot. If the parking lot has area 12,000ft^2, what are the dimensions of the entire plot of land? The answer is 120ft by

    asked by Sean
  178. physics help!

    A car accelerates at a constant rate from zero to 32.6 m/s in 10 seconds and then slows to 14.8 m/s in 5 seconds. What is its average acceleration to the nearest tenth of a m/s2 during the 15 seconds?

    asked by Adam
  179. 10th grade

    Where can I find a complete description about North American racial ideologies from 1500 to 1830 and their effects on Latin American Racial ideologies? Does this mean the transition from slavery to freedom?

    asked by anonymous
  180. Geometry

    How do I figure out the area and perimeter of a square if all I know is the cross (top left corner to bottom right corner) measurement? I have a square with the cross measurement of 8.5 (or 4 X sq root of 2, i rounded to 8.5). The square looks like it is

    asked by sam
  181. geometry

    i need help. these are patterns. statessss! AL, AK, AZ, AR, ? the next two.

    asked by lilly.
  182. physics

    What is the weight in newtons of a 250 g package of cereal? need answer and work shown asap! plz and thank u!

    asked by Natalie
  183. math 115

    how do i turn 2/3 into a decimal or do i for this question 2/3*420=

    asked by p
  184. math

    Evaluate the following. Be sure to use the proper units.5 lb/ft  3 ft

    asked by amber
  185. Physics, Please help!!!

    A car accelerates at a constant rate from zero to 32.6 m/s in 10 seconds and then slows to 14.8 m/s in 5 seconds. What is its average acceleration to the nearest tenth of a m/s2 during the 15 seconds? What was the acceleration during the first 10 seconds

    asked by Siri
  186. French Translation

    No online translators please, they are most often incorrect. Dear Madame Genn, I hope you are having a wonderful evening. This comic really is quite funny and well made! Thank you for this extra credit oppertunity,

    asked by Beatrice
  187. 3rd grade

    what is a set of related addition and subtraction number sentences useing the same numbers

    asked by rose
  188. algebra

    How do i use substitution to solve each system? y= 0.8x + 7.2 20x + 32y=48

    asked by Anonymous
  189. Algebra

    Candy and Tim share a paper route. It takes Candy 70min to deliver all the papers, and it takes Tim 80min. How long does it take the two when they work together? The answer is 37min and 20s. Here's what I have. 7/6t + 8/6t = 15/6 I have t = 5/2. I don't

    asked by Sean
  190. English

    1. The wolf climbed Ted's house and came down through the chimney. He was burned to death because of the fire in the fireplace. 2. The wolf climed Ted's house and went through the chimney. Ted made a strong fire in the fireplace. He fell in the fire of the

    asked by John
  191. business

    Do you know how to buy this program, "the speech to text program" on the website? (Dragon naturallyspeaking solution) I mean by downloading on the website.

    asked by John
  192. math

    Write each fraction in simplest form 42 55, 17 51

    asked by amber
  193. physics

    In archery, should the arrow be aimed directly at the target? How should your angle of aim depend on the distance to the target? I know the answer is no but I don't know how to prove that.

    asked by perry
  194. social studies

    The most useful indicator of the degree of democracy reached by a particular society is whether it has a

    asked by jay
  195. 8th grade science

    Measurement is a quantity with both a ____________________? Please fill in the blank. This question is on my study guide and I do not know what the answer is?

    asked by kelsey
  196. Science- Physics Problem

    I don't know if im doing these problems right, please help... A car accelerates at a constant rate from zero to 32.6 m/s in 10 seconds and then slows to 14.8 m/s in 5 seconds. What is its average acceleration to the nearest tenth of a m/s2 during the 15

    asked by Leslie
  197. american literature

    In My Antona, what does Jim lose in the process of growing up? Does Antonia lose it as well? At first I thought his youth and innocence but then it didn't seem right.

    asked by jenny
  198. Physics

    A car traveling 56 km/h is 21.0 m from a barrier when the driver slams on the brakes. The car hits the barrier 2.17 s later. a)What was the car's constant deceleration before impact? b)How fast was the car traveling at impact?

    asked by Nick